BABAR, S.; LADDHA, K. SYNTHESIS AND CHARACTERIZATION OF NEW IMINE AND PTHALIC ACID DERIVATIVES OF URSOLIC ACID. International Journal of Pharmacy and Pharmaceutical Sciences, [S. l.], v. 6, n. 10, p. 560–564, 2014. Disponível em: https://journals.innovareacademics.in/index.php/ijpps/article/view/2551. Acesso em: 22 dec. 2024.